1) Open drawing with 3D open contours (E.g. Arcs)

2) Type SPI <Enter>, for Dialog window

3) Press button [Unfold]

4) Select arc in correct sequence

5) Finish selection with <Enter>

The installer that ran when you downloaded this app/plug-in from Autodesk App Store will start installing the app/plug-in. OR, simply double-click the downloaded installer to install the app/plugin. You may need to restart the Autodesk product to activate the app/plug-in. To uninstall this plug-in, exit the Autodesk product if you are currently running it, simply rerun the installer, and select the "Uninstall" button. OR, click Control Panel > Programs > Programs and Features (Windows 7/8.1/10/11) and uninstall as you would any other application from your system.

Demo files are located in \Demo_files directory, located at: %appdata%\Autodesk\ApplicationPlugins\BASIC_SpiralCone_Unfolding.bundle\

For older Autodesk® AutoCAD® versions (from 2002) we can supply alternative installer. Please send email to basic@basic.si

During initial run please check box "Allways load this application" and pr3ess [Load]